So I got my tax returns, paid off my car and had enough left over to fund all of July. I just added the toolkit. It is showing 21 days of age of money and 12 days of buffering. Shouldn't it be 30 days of buffering if July is funded? If not, what does buffering really mean? I thought it was how long I could go with no new income.
Days of Buffering is calculated by projecting how many days you can last with your current money if you maintain the spending rate of your past.
Since you're probably not going to pay off your car again next month, take it with a grain of salt. When you start to have "normal" months, it will even out. Plus, you can set which date range the calculation includes.